In a Fresnel biprism experiment, fringe width is 0.0195 cm on a screen 100 cm from the slit. A convex lens placed 30 cm from the slit produces two slit images 0.7 cm apart on the screen. Find the wavelength of sodium light in Å.
In a Fresnel biprism experiment, fringe width is 0.0195 cm on a screen 100 cm from the slit. A convex lens placed 30 cm from the slit produces two slit images 0.7 cm apart on the screen. Find the wavelength of sodium light in Å.